ABSTRACT. Three species from the extinct ant genus Eocenomyrma (E. orthospina Dlussky et Radchenko, 2006, E. ukrainica Radchenko et Dlussky, 2016 and E. breviscapa Radchenko et Dlussky, 2016) were previously recorded or described from the Rovno amber (Klesov, Sarny Distr., Rovno Reg., Ukraine). Eocenomyrma rugosostriata (Mayr) was beforehand known from the Baltic and Bitterfeld ambers, and it is recorded here for the first time from the Rovno amber (Voronki, Vladimirets Distr.). It is 79th ant species and 117th hymenopteran species that are known from the Rovno amber; just 59 hymenopteran species (50%) are common in the Rovno and Baltic ambers. Eocenomyrma ants are represented by three species on the northern coast of Subparathetys (Baltic amber) and by five species (two species common with Baltic amber) on the southern coast of Subparathetys (Rovno, Bitterfeld and Scandinavian ambers).